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ECG findings in patients with Brugada syndrome. Representative examples of diagnostic ECGs for Brugada syndrome are shown. Panel (A). A 25-year-old male with a spontaneous type 1 pattern on 12-lead ECG. Panel (B). A 36-year-old male with right bundle branch block pattern on baseline ECG (upper panel) and subsequent unmasking of a type 1 Brugada ECG pattern after administration of ajmaline at 1 mg/kg (lower panel). ECG = electrocardiogram.
